| /* |
| * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| |
| package org.graalvm.compiler.hotspot.nodes; |
| |
| import static org.graalvm.compiler.nodeinfo.InputType.Memory; |
| import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_UNKNOWN; |
| import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_UNKNOWN; |
| |
| import java.util.Arrays; |
| |
| import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor; |
| import org.graalvm.compiler.core.common.spi.ForeignCallLinkage; |
| import org.graalvm.compiler.core.common.spi.ForeignCallsProvider; |
| import org.graalvm.compiler.core.common.type.Stamp; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.graph.NodeInputList; |
| import org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodeinfo.Verbosity; |
| import org.graalvm.compiler.nodes.FixedWithNextNode; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.memory.MemoryCheckpoint; |
| import org.graalvm.compiler.nodes.spi.LIRLowerable; |
| import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; |
| import jdk.internal.vm.compiler.word.LocationIdentity; |
| |
| import jdk.vm.ci.meta.Value; |
| |
| /** |
| * Node for a {@linkplain ForeignCallDescriptor foreign} call from within a stub. |
| */ |
| @NodeInfo(nameTemplate = "StubForeignCall#{p#descriptor/s}", allowedUsageTypes = Memory, cycles = CYCLES_UNKNOWN, size = SIZE_UNKNOWN) |
| public final class StubForeignCallNode extends FixedWithNextNode implements LIRLowerable, MemoryCheckpoint.Multi { |
| |
| public static final NodeClass<StubForeignCallNode> TYPE = NodeClass.create(StubForeignCallNode.class); |
| @Input NodeInputList<ValueNode> arguments; |
| protected final ForeignCallsProvider foreignCalls; |
| |
| protected final ForeignCallDescriptor descriptor; |
| |
| public StubForeignCallNode(@InjectedNodeParameter ForeignCallsProvider foreignCalls, @InjectedNodeParameter Stamp stamp, ForeignCallDescriptor descriptor, ValueNode... arguments) { |
| super(TYPE, stamp); |
| this.arguments = new NodeInputList<>(this, arguments); |
| this.descriptor = descriptor; |
| this.foreignCalls = foreignCalls; |
| } |
| |
| public ForeignCallDescriptor getDescriptor() { |
| return descriptor; |
| } |
| |
| @Override |
| public LocationIdentity[] getLocationIdentities() { |
| LocationIdentity[] killedLocations = foreignCalls.getKilledLocations(descriptor); |
| killedLocations = Arrays.copyOf(killedLocations, killedLocations.length + 1); |
| killedLocations[killedLocations.length - 1] = HotSpotReplacementsUtil.PENDING_EXCEPTION_LOCATION; |
| return killedLocations; |
| } |
| |
| protected Value[] operands(NodeLIRBuilderTool gen) { |
| Value[] operands = new Value[arguments.size()]; |
| for (int i = 0; i < operands.length; i++) { |
| operands[i] = gen.operand(arguments.get(i)); |
| } |
| return operands; |
| } |
| |
| @Override |
| public void generate(NodeLIRBuilderTool gen) { |
| assert graph().start() instanceof StubStartNode; |
| ForeignCallLinkage linkage = foreignCalls.lookupForeignCall(descriptor); |
| Value[] operands = operands(gen); |
| Value result = gen.getLIRGeneratorTool().emitForeignCall(linkage, null, operands); |
| if (result != null) { |
| gen.setResult(this, result); |
| } |
| } |
| |
| @Override |
| public String toString(Verbosity verbosity) { |
| if (verbosity == Verbosity.Name) { |
| return super.toString(verbosity) + "#" + descriptor; |
| } |
| return super.toString(verbosity); |
| } |
| } |